Cubic Trefoil Knot: This model demonstrates a different technique for creating a weldment without using a 3D sketch or a collection of 2D sketches.

This multi-body part is called a Cubic Trefoil Knot. It is a 3D-golygon (knotted golygon).  Instead of using standard weldment structural members, the building blocks are created then patterned.

Download the Cubic Trefoil Knot here

Complexity: Basic

Features: Move/Copy Body, Constraint

Complexity: Basic

Want to learn more? You can view the full list of previous Part Reviewer Tutorials here.

DraftSight Download: In conjunction with DraftSight, Dassault Systèmes’ 2D CAD product, the 2D drawing(.dwg) file of the Cubic Trefoil Knot Tutorial is now available for download here.